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Finding the Fourth Proportional to 172,676.75, 259,029.80 and 48,017.75

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Solution

The fourth proportional to 172,676.75, 259,029.80 and 48,017.75 is: 72,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,676.75 : 259,029.80 = 48,017.75 : x
  2. Step 2: Convert to fraction form
    172,676.75/259,029.80 = 48,017.75/x
  3. Step 3: Cross multiply
    172,676.75x = 259,029.80 × 48,017.75
  4. Step 4: Simplify right side
    172,676.75x = 12,438,028,178.95
  5. Step 5: Solve for x
    x = 12,438,028,178.95/172,676.75
  6. Step 6: Final answer
    x = 72,030.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.